The SOF 6RX is a dedicated 6mm rifle suppressor designed for Recce and precision rifle platforms. It is built in Inconel 718 with 3D metallurgical additive manufacturing and measures 6.86 inches long with a 1.75-inch diameter. At 21.9 ounces, it is rated for semi-automatic operation with a minimum barrel length of 13 inches. A quick-detach mount and a NANO G coating round out the package. It suits a precision rifle that needs a solid, repeatable suppressor.

Key Specifications

• The caliber is 6mm, built for 6mm precision and Recce rifles.
• Overall length is 6.86 inches, the figure to add to your barrel length.
• The material is Inconel 718, 3D printed with metallurgical additive manufacturing.
• The mount is a 1×16 LH quick-detach (QD) system with an AI Nano muzzle device.
• The listed limits are a 13-inch minimum barrel length and a 2,850 FPS maximum velocity, for semi-automatic use.

Frequently Asked Questions

What barrel length does the 6RX need? SOF lists a minimum barrel length of 13 inches and a maximum projectile velocity of 2,850 FPS, for semi-automatic operation.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the SOF 6RX Suppressor, 6mm, Quick-Detach 1×16 LH

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through SOF’s suppressors lineup and our Lubbock, Texas team will handle the transfer and it ships fast to your Class 3 dealer. For a 6mm precision rifle, the 6RX adds a quick-detach Inconel can made for that role.